Neal Pollack wrote:
1. ...it appears to be a NanoVNA-H hardware version but without the plastic case. It is black, USB-C, with RF shields and LiPo battery containing charge/protection circuits on the battery ...
The NanoVNA-H is hugen's newest release of the NanoVNA with plastic case, battery monitoring circuit, and USB-C to USB-C resistors. The "-H" suffix was added to distinguish it from other NanoVNA's.
2. Is there a command, either in the PC software via USB cable, or else via the USB serial console,
that will show what version firmware I have?
More recent firmware can display the version number through the menu by selecting <CONFIG-VERSION>. I believe on earlier firmware you could connect the NanoVNA to a PC and then using a terminal program type "version" to get the version number.
3. How can I tell if I can use the newer firmware, perhaps the H version, so that I can get the added features such as TDR
The various firmware available is useable with all NanoVNA and NanoVNA-H models. They cannot be used with the NanoVNA-F which is the 4.3" screen model.
- Herb
